Mark 16:15-16

And he said to them, "Go into all the world and preach the gospel to all creation.

Romans 10:14-18

How then can they call on him in whom they have not believed? And how can they believe in him of whom they have not heard? And how can they hear without a preacher?

Romans 15:16-19

to be a minister of Christ Jesus to the Gentiles in the priestly service of the gospel of God, so that the offering of the Gentiles might be acceptable, sanctified by the Holy Spirit.

Treasury of Scripture Knowledge

Summary

And in the seventh month, on the first day of the month, ye shall have an holy convocation; ye shall do no servile work: it is a day of blowing the trumpets unto you.

Bible References

Blowing

Mark 16:15
And he said to them, "Go into all the world and preach the gospel to all creation.
Romans 10:14
How then can they call on him in whom they have not believed? And how can they believe in him of whom they have not heard? And how can they hear without a preacher?
Romans 15:16
to be a minister of Christ Jesus to the Gentiles in the priestly service of the gospel of God, so that the offering of the Gentiles might be acceptable, sanctified by the Holy Spirit.